Comments for Arqen.com

Comment on Speaker Placement Boundary Interference by Olcay Demirci

Olcay Demirci — Wed, 21 Dec 2022 22:54:00 +0000

In Genelec’s web site, they advice avoid 60 cm – 1.2 Metre and they say its good ≥ 1.1 meters ??? and in your article you advice: Avoid: 1-2.2 m Im really confused by this to controversial statement. Any help appreciated

Comment on Bass Traps 101: Placement Guide by ChicagoBlah

ChicagoBlah — Thu, 24 Feb 2022 15:27:00 +0000

Literally have no space for bass traps in any corners, any suggestions for this? Buying a new home is out of the question. Im in a 10x8x8 room, seating is pretty much on the wall , not ideal but thats what it is.

This is soley used for tv and movies, for music I just use my desktop amp/planars

Comment on Room Setup & Speaker Placement 101 by RazorXcom

RazorXcom — Sun, 16 Jan 2022 10:08:00 +0000

The “38% Rule” should no longer be used as a suggestion. It’s close but not accurate. 38% is too close to the 4th harmonic null at 37.5%. The real listening position is at 39.6%. Why? Because it’s exactly between the 4th (37.5%) and 6th (41.7%) harmonic null. We have 37.5% + 41.7% / 2 = 39.6%. So if you are keeping your head in-between the harmonic nulls, then your possible Listen Positions will always be the same in any room: 32.8%, 39.6%, or 45.8%.

Room length makes a big difference is where the Listening Position will be located. There’s no way a Listening Position of 37.5% will work in a small length room. Small rooms will have a Listening Position of 45.8%, medium length rooms will be 39.6%, and rooms with larger lengths will be 32.8%.

Overall the 38% Rule is inaccurate, is outdated, and doesn’t work for every room length.

Comment on Sound Diffusers 101: Free DIY Diffuser Designs by ZippoLag

ZippoLag — Mon, 20 Dec 2021 21:03:00 +0000

Hi! I just wanted to tell you that the download is not working, it says “maling list not active”. Cheers!

Comment on Reflection-Free Zone by Lee

Lee — Mon, 18 Oct 2021 20:27:00 +0000

The information you provided regarding the precedence effect and Haas effect is incorrect. The precedence effect is triggered with a delay time of 1.1ms or higher (lower boundary), depending on the type of source, with its upper boundary (echo threshold) being 35-50ms for speech or 80ms for orchestral music. You mentioned the image would shift if the reflection delay is below 15ms, but it wouldn’t as long as the precedence effect operates, in the delay time range between 1ms and the echo threshold, but you get image spread and colouration effects. In the article, the Haas effect and the precedence effect seem to be confused, as often found in other resources too. The Haas is about the relationship between the reflection delay and reflection level in terms of the precedence effect. e.g. at around 20ms, the precedence effect is still triggered even if the reflection is 11dB or so louder than the direct sound, above which echo is perceived. This level threshold changes with delay time.

Comment on Sound Diffusers 101: Free DIY Diffuser Designs by H Rave

H Rave — Tue, 31 Aug 2021 10:12:00 +0000

Hi Tim,
Many thanks for your comprehensive information. I would like to download the blueprints and your thesis, but got a message that “Mailing list is not active”. This holds for both Firefox and Edge. Could you let me know how to download the stuff?
Many thanks.

Comment on Bass Traps 101: Placement Guide by Dulmin

Dulmin — Sun, 30 May 2021 18:58:00 +0000

THANK YOU VERY MUCH !!!!
This was extremely helpful.

Comment on Speaker Placement Boundary Interference by Sebastian K

Sebastian K — Fri, 12 Feb 2021 01:29:00 +0000

You wrote that SBIR can not be corrected by eq, because if you boost the notch it will also boost the interfering wave that’s returning from the rear wall after bouncing. But what if I lower everything else so that it matches the notch? After doing so, the decay time in the place where the notch used to be will still be shitty, but I will have my frequency response corrected in exchange for volume, is that correct, or am I missing something?

Comment on Bass Traps 101: Placement Guide by Riki Entz

Riki Entz — Thu, 21 Jan 2021 21:44:00 +0000

I know this is an older post, but I still want to say thank you for this.

I work in theatre accessibility , and with so many people transitioning to digital at once,

Comment on Room Setup & Speaker Placement 101 by Noharm

Noharm — Wed, 07 Oct 2020 09:43:00 +0000

It doesen’t matter if tweeters are dead center with the room, they are tweeters…